Hi??
Thank you for your detail information. After reading this, i can understand.
But after calling "want_per_interface_simple_stats" with enable_disable=1,
num=1 and sw_ifs[4], i do not know how to receive this stats. calling other
function or variable? Can you tell me how to receive stats in my c program?
Thanks??
------------------ ???????? ------------------
??????: "Keith Burns";<alaga...@gmail.com>;
????????: 2017??9??27??(??????) ????6:39
??????: "????????"<15803846...@qq.com>;"vpp-dev"<vpp-dev@lists.fd.io>;
????: Re: [vpp-dev] How to get interface stats using C api?
Hi there,
As of 17.10 you can now register for statistics on a per interface level.
You need the sw_if_index of the interface you want stats for, but the calls are
in
https://git.fd.io/vpp/tree/src/vpp/stats/stats.api
but as an example:
Register:
autoreply define want_per_interface_simple_stats { u32 client_index; u32
context; u32 enable_disable; u32 pid; u32 num; u32 sw_ifs[num]; };
So calling "want_per_interface_simple_stats" with enable_disable=1, num=1 and
sw_ifs[4] will give you interface_simple_stats every 10sec for sw_if_index=4.
The content of "interface_simple_stats" looks like:
/** \brief Simple per interface stats counters structure @param count -
number of elements in message @param timestamp - u32 vlib timestamp for
control plane @param data[count] - vl_api_vnet_simple_counter_t */
manual_print manual_endian define vnet_per_interface_simple_counters { u32
count; u32 timestamp; vl_api_vnet_simple_counter_t data[count]; };
Where each "vnet_simple_counter_t" looks like:
https://git.fd.io/vpp/tree/src/vnet/interface.api
/** \brief Simple interface counter data type for
vnet_interface_simple_counters @param sw_if_index - interface indexes for
counters @param drop - RX or TX drops due to buffer starvation @param
punt - used with VNET "punt" disposition @param rx_ip4 - received IP4
packets @param rx_ip6 - received IP6 packets @param rx_no_buffer - no
RX buffers available @param rx_miss - receive misses @param rx_error -
receive errors @param tx_error - transmit errors @param rx_mpls -
received MPLS packet */ typeonly manual_print manual_endian define
vnet_simple_counter { u32 sw_if_index; u64 drop; u64 punt; u64 rx_ip4;
u64 rx_ip6; u64 rx_no_buffer; u64 rx_miss; u64 rx_error; u64 tx_error;
u64 rx_mpls; };
So you will get back an array of counter structs for each sw_if_index you
registered for.
At the moment the impl sends on sw_if_index per reply but that is going to
change so that for each client we send as much in one message as possible.
On Tue, Sep 26, 2017 at 4:50 AM ???????? <15803846...@qq.com> wrote:
Hi, everyone! How to get interface stats using C api? For example, I want to
know "GigabitEthernete/0/1" rx packets , what should I do? Thanks
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